/*
 * Copyright (C) 2007 Google (Evan Stade)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#ifndef _GDIPLUSPIXELFORMATS_H
#define _GDIPLUSPIXELFORMATS_H

typedef DWORD ARGB;
typedef INT PixelFormat;

#define PixelFormatIndexed 0x00010000
#define PixelFormatGDI 0x00020000
#define PixelFormatAlpha 0x00040000
#define PixelFormatPAlpha 0x00080000
#define PixelFormatExtended 0x00100000
#define PixelFormatCanonical 0x00200000

#define PixelFormatUndefined 0
#define PixelFormatDontCare 0

#define PixelFormat1bppIndexed (1 | (1 << 8) | PixelFormatIndexed | PixelFormatGDI)
#define PixelFormat4bppIndexed (2 | (4 << 8) | PixelFormatIndexed | PixelFormatGDI)
#define PixelFormat8bppIndexed (3 | (8 << 8) | PixelFormatIndexed | PixelFormatGDI)
#define PixelFormat16bppGrayScale (4 | (16 << 8) | PixelFormatExtended)
#define PixelFormat16bppRGB555 (5 | (16 << 8) | PixelFormatGDI)
#define PixelFormat16bppRGB565 (6 | (16 << 8) | PixelFormatGDI)
#define PixelFormat16bppARGB1555 (7 | (16 << 8) | PixelFormatAlpha | PixelFormatGDI)
#define PixelFormat24bppRGB (8 | (24 << 8) | PixelFormatGDI)
#define PixelFormat32bppRGB (9 | (32 << 8) | PixelFormatGDI)
#define PixelFormat32bppARGB (10 | (32 << 8) | PixelFormatAlpha | PixelFormatGDI | PixelFormatCanonical)
#define PixelFormat32bppPARGB (11 | (32 << 8) | PixelFormatAlpha | PixelFormatPAlpha | PixelFormatGDI)
#define PixelFormat48bppRGB (12 | (48 << 8) | PixelFormatExtended)
#define PixelFormat64bppARGB (13 | (64 << 8) | PixelFormatAlpha | PixelFormatCanonical | PixelFormatExtended)
#define PixelFormat64bppPARGB (14 | (64 << 8) | PixelFormatAlpha | PixelFormatPAlpha | PixelFormatExtended)
#define PixelFormat32bppCMYK (15 | (32 << 8))
#define PixelFormatMax 16

static inline BOOL
IsIndexedPixelFormat(PixelFormat format)
{
    return (format & PixelFormatIndexed) != 0;
}

static inline BOOL
IsAlphaPixelFormat(PixelFormat format)
{
    return (format & PixelFormatAlpha) != 0;
}

static inline BOOL
IsCanonicalPixelFormat(PixelFormat format)
{
    return (format & PixelFormatCanonical) != 0;
}

static inline BOOL
IsExtendedPixelFormat(PixelFormat format)
{
    return (format & PixelFormatExtended) != 0;
}

static inline UINT
GetPixelFormatSize(PixelFormat format)
{
    return (format >> 8) & 0xff;
}

enum PaletteFlags
{
    PaletteFlagsHasAlpha = 1,
    PaletteFlagsGrayScale = 2,
    PaletteFlagsHalftone = 4
};

#ifdef __cplusplus

struct ColorPalette
{
  public:
    UINT Flags;
    UINT Count;
    ARGB Entries[1];
};

#else /* end of c++ typedefs */

typedef struct ColorPalette
{
    UINT Flags;
    UINT Count;
    ARGB Entries[1];
} ColorPalette;

#endif /* end of c typedefs */

typedef enum DitherType
{
    DitherTypeNone,
    DitherTypeSolid,
    DitherTypeOrdered4x4,
    DitherTypeOrdered8x8,
    DitherTypeOrdered16x16,
    DitherTypeSpiral4x4,
    DitherTypeSpiral8x8,
    DitherTypeDualSpiral4x4,
    DitherTypeDualSpiral8x8,
    DitherTypeErrorDiffusion,
    DitherTypeMax
} DitherType;

typedef enum PaletteType
{
    PaletteTypeCustom,
    PaletteTypeOptimal,
    PaletteTypeFixedBW,
    PaletteTypeFixedHalftone8,
    PaletteTypeFixedHalftone27,
    PaletteTypeFixedHalftone64,
    PaletteTypeFixedHalftone125,
    PaletteTypeFixedHalftone216,
    PaletteTypeFixedHalftone252,
    PaletteTypeFixedHalftone256
} PaletteType;

#endif
